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Finally... a Battery Life Improvement App that Actually Works Well: Carat

Discussion in 'Android News' started by dgstorm, Jun 15, 2012.

  1. dgstorm
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    dgstorm Editor in Chief Staff Member Premium Member

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    [​IMG]

    It's easy to be skeptical of battery management apps on Android. Most of them are simply a more complex task manager with tons of apps to kill with an unknown result, or they simply have dysfunctional battery reports. A new app called Carat aims to change all that. Carat is pretty revolutionary because it can help increase you battery life by showing you exactly which apps to kill in order to see the most improvement. The app can actually show you which apps are hogging the most energy and how much battery life you can expect to gain by killing that particular app.

    It does this by taking measurements from your device. It then performs some math while combining it with (anonymous) data from other users that the program tracks. It then recommends tips to kill or restart apps, and tells you how many more minutes or more of use you might gain on your device.

    The team behind this app doesn't intend to make a profit with it. They are a group of M.S. and Ph.D scientists from the UC Berkeley electrical engineering and computer science department’s Algorithms, Machines, and People Laboratory (AMP Lab). Their primary purpose is to push forward with cutting-edge battery science by collecting anonymous, privacy-respectful data for research that could make all devices last longer.

    Their research has broken battery hungry apps into two categories. One is called a bug, and the other is called a hog. A bug can be found in just about any app, and the apps themselves are usually not bad. Unfortunately, sometimes apps have coding bugs that are never found by their developers because the only symptom is reduced battery efficiency at a small almost unnoticeable scale. These are typically not necessarily "bad" apps. It's basically just a malfunction in the app. A good example would be a game that accidentally turns on your WiFI.

    The second category are hogs. These are basically just apps that are super energy hungry all by themselves and run needlessly in the background sucking away power. Here are some other interesting things their research has uncovered:

    Carat’s philosophy is "deploy to the crowd, debug in the cloud." This is a great concept and Carat is a fantastic implementation of that concept. You can hit up the Google Play Store link to download the app for free to help support the project, and to help yourself manage your device's battery better.

    Source: Google Play Store - Carat
  2. billyk
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    billyk New Member

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    I saw this earlier today in my FlipBoard news feed.
    Another app tracking my data.
    Hmmmm...
  3. georgeo18yal
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    georgeo18yal Member

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    I'll give it a shot. Never hurts to try to improve my battery life!
  4. anewton
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    anewton New Member

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    The only question I have about this app is, will it actually kill the hog apps? I have a Droid 4 on Verizon, preloaded with all sorts of things I don't want, much of which is running when I don't want it to. I use Advanced Task Killer to kill them. When I immediately fire ATK up again, many of the apps have restarted. Does Carat have a way of preventing that?
  5. tjk629
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    tjk629 New Member

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    I wouldn't think so

    Personally, just root and freeze the stuff. Easiest and most effective way to take care of them.

    Sent from my DROID BIONIC using Droid Forums
  6. LoudRam
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    LoudRam Well-Known Member

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    The reviews in the app market are really bad. A lot of people are saying that the app itself is a battery hog.

    Sent from my HTC Rezound infused with ice cream goodness using Droid Forums.
  7. suzukimethod
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    suzukimethod New Member

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    so far so good on my g nex.

    hasnt been running long enough (~2-3 days) to calc the battery stats, but it hasnt affected my battery negatively either.
  8. DF Smod
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    DF Smod New Member

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    I like the idea, gonna run it for a few days just to see what it says...

    Sent from my Galaxy Nexus
  9. jstafford1
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    jstafford1 Super Moderator

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    Will give this a go on the D3. I get decent battery life as is, but sometimes it is bad so maybe this will help. Worth a try, if it doesn't then just delete, no biggy.

    Sent from my DROID3 using Tapatalk 2
  10. Xplorer4x4
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    Xplorer4x4 New Member

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    I wondered how long it would be before some one busted out the tin foil hat...seriously, what part of annonoymous is so bad?
  11. billyk
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    billyk New Member

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    No tin foil here my friend - just lots of years in software design/development.
    Don't be too quick to assume that others are speaking from a position of ignorance.

    BTW: it's "anonymous".
  12. trestevenson
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    trestevenson Active Member

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    I like the idea behind this. I think I'll give it a go!
  13. Ziggie
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    Ziggie New Member

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    Have people been using carat? I installed it about a week ago.

    My J-Score is always 0. Is this possible? Do I have the least efficient Bionic ever?

    Rooted Bionic running .905. No ROMs. Bloat is all frozen.
  14. LoudRam
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    LoudRam Well-Known Member

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    I have the same score. I think that it's not done yet because the other screens still say nothing to report.

    Sent from my HTC Rezound infused with ice cream goodness using Droid Forums.
  15. georgeo18yal
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    georgeo18yal Member

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    The score does not come out accurately for roughly a week, that is why your J- score is 0. It can sometimes take an extra couple days just to give you an accurate description of your phone usage.

    Sent from my DROID RAZR using Droid Forums
  16. LoudRam
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    LoudRam Well-Known Member

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    So has anyone gotten a score yet? According to the reviews on this app very few have gotten any feedback or score. The developers asked everyone to be patient because their servers are overloaded. So how long is everyone going to wait? I might give it another week.

    Sent from my HTC Rezound infused with ice cream goodness using Droid Forums.
  17. jayman350
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    jayman350 New Member

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    haven't gotten a score yet, but it has been pretty spot-on for calculating the average battery life. I'm going to stick with this for another week, if nothing happens by then I'll uninstall.
  18. LoudRam
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    LoudRam Well-Known Member

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  19. lloydstrans
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    lloydstrans Well-Known Member

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    Just checked carat, seems battery hogs are (in order) TV Guide, Badass Battery Monitor, Handcent, No Lock and Phone. Shouldn't they excluded basic telephone funtions from the kill list?
  20. LoudRam
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    LoudRam Well-Known Member

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    It's good to see that you finally got some info back. At least we know it works. But I just thought of something. If it compares your phone to similar phones with the same OS, I might be waiting a while. There aren't that many Rezounds running ICS. Oh well.
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